| Patents for B21L 11 - Making chains or chain links of special shape (298) |
|---|
| 01/30/1996 | US5487264 Hollow diamond cut rope chain |
| 12/05/1995 | US5471830 Jewelry chain |
| 12/01/1995 | CA2149373A1 Ornamental chain |
| 11/28/1995 | US5469697 Stud link chain |
| 09/26/1995 | US5452572 Hollow rope chain with close fitted links |
| 08/01/1995 | US5437149 Hollow diamond cut rope chain with multi-faceted surfaces |
| 06/20/1995 | US5425228 Multi-color faceted rope chain and fabrication method |
| 05/09/1995 | US5412935 Fine jewelry chain, link therefor, and method of manufacture thereof |
| 05/09/1995 | US5412933 Automatic link forming apparatus |
| 05/02/1995 | US5411445 Ball chain and splicing means therefor |
| 04/25/1995 | US5408820 Process for making hollow diamond cut rope chain |
| 02/14/1995 | US5388750 Soldering machine for rope chain |
| 01/12/1995 | DE4324387A1 Schmuck-Kordelkette Jewelry rope chain |
| 12/21/1994 | EP0629364A1 Fine jewelry, diamond cut chain and method of manufacture thereof |
| 12/07/1994 | EP0627181A1 Fine jewelry chain, link therefor, and method of manufacture thereof |
| 11/23/1994 | CN1095320A Automatic link forming apparatus |
| 11/08/1994 | US5361575 Fine jewelry rope chain |
| 10/11/1994 | US5353584 Hollow diamond cut rope chain with multi-faceted surfaces |
| 09/28/1994 | CN1092705A Stud link chain |
| 06/09/1994 | WO1994012807A1 Chain link, connecting part for chain links and method for the production thereof |
| 06/09/1994 | CA2149748A1 Chain link, connecting part for chain links and method for the production thereof |
| 04/19/1994 | US5303540 Fine jewelry diamond cut rope chain and method of manufacturing same |
| 04/12/1994 | US5301498 Rope chain component |
| 03/23/1994 | EP0588590A1 Automatic link forming apparatus |
| 02/15/1994 | US5285625 Spiral diamond cut jewelry chain |
| 10/13/1993 | EP0565379A1 Ball chain and splicing means therefor |
| 10/10/1993 | CA2092257A1 Ball chain and splicing means therefor |
| 05/27/1993 | WO1993009897A1 Hollow diamond cut rope chain and method of making same |
| 05/19/1993 | EP0542399A1 Hollow diamond cut rope chain |
| 02/16/1993 | US5185995 Rope chain with novel link |
| 12/16/1992 | EP0518825A1 Chain structure for ornamental uses and a method of production thereof |
| 10/06/1992 | US5152133 Method and machine for the automatic formation of ornamental chains with eight-shaped links |
| 07/14/1992 | US5129220 Hollow rope chain with simulated diamond cut |
| 06/30/1992 | US5125225 Process for making hollow diamond cut rope chain |
| 03/03/1992 | US5092120 Method and machine for the formation of ornamental chains with cylindrical helix shaped links |
| 12/18/1991 | EP0462077A1 Method of forming a decorative chain, and article produced in this way |
| 11/06/1991 | CN2088007U Telescopic hook |
| 10/22/1991 | US5058252 Apparatus and method for finishing chain assembly |
| 04/23/1991 | US5009630 Chain formed by link elements of identical shape |
| 03/19/1991 | US4999989 Machine for the production of an ornamental chain of the type formed by "figure-of eight" links |
| 01/22/1991 | US4986067 Lightweight jewelry |
| 01/16/1991 | EP0408520A2 Method and machine for the automatic manufacture of ornamental chains with 8-shaped chain links |
| 11/27/1990 | US4972670 Process for the automatic production of ornamental link chains |
| 08/01/1990 | EP0380452A2 Method and apparatus for making ornamental chains with cylindrical helix links |
| 06/19/1990 | US4934135 Fine jewelry rope chain |
| 06/12/1990 | US4932203 Machine for the production of "bow-type" ornamental chains |
| 05/23/1990 | EP0369588A1 Chain formed by link elements of identical shape |
| 03/27/1990 | US4910954 Apparatus for the formation of ornamental chains |
| 03/21/1990 | EP0359722A2 Machine for the production of an ornamental chain of the type formed by so-called "figure-of-eight" links |
| 02/27/1990 | US4903475 Apparatus for the production of ornamental chains of the type known as "peacock eye" |
| 12/27/1989 | CN2049973U Bead i type chain connector wreckaging mechanism |
| 10/10/1989 | US4872305 Process for the automatic production of ornamental link chains and relative apparatus |
| 11/22/1988 | US4785521 Method for automatically linking beads or the like |
| 11/02/1988 | EP0186685B1 Track joint and method of assembling same |
| 09/13/1988 | US4769884 Robotic apparatus for automatically assembling chains |
| 03/15/1988 | US4730961 Edging machine preferably for chains |
| 01/12/1988 | US4718592 Apparatus for soldering an ornamental chain with loops having two intertwined strands |
| 08/26/1987 | EP0233351A2 Machine for soldering an ornamental crossed-ring chain of the two-stringed cord form type |
| 07/14/1987 | US4679392 Process for producing a garland chain |
| 07/14/1987 | US4679391 Method of manufacturing jewelry chains from decorated helicoid members and/or links |
| 07/08/1987 | EP0228355A1 Method of securing a stud in a chain link |
| 04/21/1987 | US4658576 Device for the parallel automatic feeding of ornamental chains, in particular for the production of paired chains |
| 02/24/1987 | US4644743 Machine for the production of ornamental chains, in particular of the paired type |
| 02/17/1987 | US4642982 Chain belt and method of manufacture |
| 12/02/1986 | CA1214663A1 Power transmission chain-belt |
| 09/09/1986 | CA1210967A1 Power transmission chain-belt |
| 09/09/1986 | CA1210966A1 Power transmission chain-belt |
| 07/17/1986 | EP0186685A4 Track joint and method of assembling same. |
| 07/09/1986 | EP0186685A1 Track joint and method of assembling same. |
| 02/11/1986 | US4569472 Apparatus for automatically soldering jewelry chains |
| 12/19/1985 | WO1985005579A1 Track joint and method of assembling same |
| 10/22/1985 | US4548031 Machine for producing ornamental chains made up of links of different forms and/or dimensions connected in any programmable sequence |
| 07/31/1985 | EP0149807A1 Automatic soldering machine for chains |
| 05/14/1985 | US4516965 Power transmission chain-belt |
| 05/14/1985 | US4516964 Power transmission chain-belt |
| 05/14/1985 | US4516963 Power transmission chain-belt |
| 03/12/1985 | US4503664 Rope chain machine |
| 01/15/1985 | US4493183 Machine for the manufacture of chains, in particular of the type known as rope chain in the goldsmithery industry |
| 12/05/1984 | EP0127270A1 Power transmission chain-belt |
| 12/05/1984 | EP0127266A1 Power transmission chain-belt |
| 12/05/1984 | EP0127255A1 Power transmission chain-belt |
| 01/12/1983 | EP0069192A1 Piece of jewellery |
| 08/03/1982 | US4342191 Method for the production of ornamental link chains (Venetian chains) ready for soldering |
| 07/13/1982 | US4338779 Apparatus for the production of ornamental link chains (venetian chains) ready for soldering |
| 01/26/1982 | CA1116958A1 Automatic apparatus for the treatment of links of metallic chains |
| 01/19/1982 | US4311003 Machine for the formation of chains with links of two types |
| 05/12/1981 | US4266400 Wrist watch band and manufacturing method therefor |
| 10/28/1980 | US4230251 Automatic apparatus for the treatment of links of metallic chains |
| 01/29/1980 | US4185454 Link stud inserter |
| 11/27/1979 | US4175379 Machine for making decorative chains having links of at least two different shapes or sizes |
| 02/27/1979 | US4141211 Traversing device in a chain manufacturing plant |
| 02/20/1979 | CA1048793A1 Heavy-duty offshore stud chain link |
| 10/24/1978 | CA1040872A1 Sound deadened chain |
| 02/21/1978 | US4074518 Apparatus for making a link-type conveyor belt |
| 01/10/1978 | US4067188 Heavy-duty offshore stud chain link |
| 09/13/1977 | US4047378 Machine for forming a Bismarck chain |
| 08/10/1976 | US3973389 Sound deadened chain |
| 03/23/1976 | US3945198 Chain making apparatus |