Patents
Sitemap › G09 - Educating; Cryptography; Display; Advertising; Seals › G09D - Railway or like time or fare tables; Perpetual calendars › G09D 3 - Perpetual calendars
Patents for G09D 3 - Perpetual calendars (1,171)
03/1989
03/01/1989CN2033532U Multiyear double-faced desk calender
02/1989
02/21/1989US4807155 Electronic calendaring method for confirmation of resource availability during event calendaring
01/1989
01/25/1989CN2031556U Perpetual cnlendar
01/17/1989US4798402 Priority planner calendar
01/11/1989CN2030741U Cylindrical monthly calendar
01/03/1989US4794711 Perpetual engagement calender and wallet
12/1988
12/28/1988CN88211516U Hanging calendar capable of using repetedly for years
12/27/1988US4793634 Original perpetual diary calendar
12/27/1988US4793080 Perpetual calendar
12/14/1988CN88211728U Multifunction life-time monthly calendar
11/1988
11/15/1988US4783922 Memory enhancing calendar system
10/1988
10/12/1988CN87216412U Permanent calendar
08/1988
08/31/1988CN87216302U Wall calendar for human biological rhythms
08/24/1988CN87214823U Multifunctional rotating desk calendar
08/24/1988CN86209654U Perpetual calendar
08/03/1988EP0276429A2 Electronic calendaring method for use in a data processing system
08/03/1988EP0276428A2 An electronic calendaring method for use in data processing system
08/03/1988EP0276427A2 An electronic calendaring method for use in a data processing system
08/03/1988EP0276426A2 Method for automatically reconciling entries on copies of electronic calendars in a data processing system
07/1988
07/06/1988CN87212233U Fully automatic calendar plate
07/06/1988CN87208333U Transmission calendar
06/1988
06/29/1988CN86108551A Permanent gregorian wall calendar
06/08/1988CN87212728U Multi-purpose rotatable wall calendar
05/1988
05/04/1988CN87204689U 活动万年历 Events calendar
05/04/1988CN87105284A Perpetual blind calendars
04/1988
04/27/1988EP0264549A2 Perpetual blind calendars
04/27/1988CN87213405U Electronic calendar with segment code storage
04/20/1988CN87203782U Movable combination of wall lamp and wall calendar
03/1988
03/30/1988CN87211186U Watch strap with comparison device of the gregorian calender and the lunar calendar
03/30/1988CN87201615U Hanging calendar with light source
03/23/1988CN87212331U Composite wall calendar
03/23/1988CN87201451U Thousand years' calendar
03/01/1988CA1233447A1 Perpetual blind calendar (pbc)
02/1988
02/03/1988CN87200342U Perpetual calendar
01/1988
01/20/1988EP0253003A1 Flat container for sweets, especially a wall calendar
01/13/1988CN87206569U Dynamic three-dimensional calendar
01/13/1988CN87202813U Movable perpetual calendar of trunk and branch
01/13/1988CN87200319U A single-page calendar with spin axis
12/1987
12/30/1987CN87201722U Rotary perpetual calendar
12/01/1987US4709493 Clock with calendar notepad
11/1987
11/25/1987CN87102909A One letter alphabet and the like
11/10/1987CA1229103A1 Punchboard calender
11/03/1987US4703571 Calendar/file/memo systems
10/1987
10/28/1987EP0242739A2 One letter alphabet
10/14/1987CN87201954U Convenient-to-use calendar
09/1987
09/29/1987US4696118 Desk calendar
09/02/1987CN86202550U Rotary desk calendar
08/1987
08/26/1987CN86202285U Display unit for calendar
08/26/1987CN86200226U Universal common and famer's calendar
07/1987
07/29/1987CN85204820U Clock or desk calender indicating acupoint condition
07/08/1987CN86200732U Easy-to-look calender with date mark
07/01/1987CN86207548U Multifunctional music desk diary plate
06/1987
06/24/1987CN85205647U Multipurpose biological rhythm calendar of human body
05/1987
05/27/1987CN86206655U Permanent combined calendar
03/1987
03/25/1987CN86203667U Active 100 centenary calender plate
03/03/1987US4646453 Scroll type calendar display device
02/1987
02/24/1987US4645238 Annotated calendar assembly
01/1987
01/08/1987DE3523980A1 Calendar
11/1986
11/18/1986US4622767 For a calandar pad
10/1986
10/29/1986EP0198895A1 Variable monthly calendar with week display
10/08/1986EP0196869A1 Calendar apparatus and method
07/1986
07/09/1986CN85202224U Coordinate-type perpetual calendar
06/1986
06/25/1986CN85200670U Muti-purposes table calendar
06/24/1986US4596082 Permanent calendar construction
06/18/1986CN85204574U Pocket monthly calender without limitation of the number of gears
06/11/1986EP0183851A1 Television receiving set
05/1986
05/09/1986WO1986002763A1 Variable monthly calendar with week display
02/1986
02/04/1986US4567680 Perma desk calendar
12/1985
12/05/1985WO1985005521A1 Television receiving set
10/1985
10/01/1985EP0136294A4 Perpetual Calendar.
06/1985
06/18/1985US4523399 Display mount apparatus and method
05/1985
05/14/1985CA1187126A1 Cube puzzle
04/1985
04/10/1985EP0136294A1 Perpetual Calendar.
12/1984
12/18/1984US4488366 Calendar with combined display of consecutive months
11/1984
11/27/1984US4484402 Calendar
10/1984
10/31/1984EP0123084A2 Method for displaying an annotated calendar
09/1984
09/25/1984US4472894 Punchboard calendar
09/25/1984US4472893 Calendar agenda
09/25/1984US4472892 Perpetual cubic calendar
08/1984
08/30/1984WO1984003384A1 Display device
07/1984
07/10/1984US4458433 Desk calendar
07/03/1984US4457088 Calendar holder
03/1984
03/01/1984WO1984000674A1 Watch bracelet element with calendar data
02/1984
02/22/1984EP0101413A1 Watch strap element with a calendar
02/22/1984EP0101382A1 Calender rule
01/1984
01/24/1984CA1160841A1 Desk calendar
11/1983
11/29/1983US4418274 Slide rule - calendar
11/15/1983US4415271 Compact electronic device having calendar function
11/01/1983US4412749 Programmable electronic time and tide clock
10/1983
10/18/1983US4409750 Calender formed from a cube puzzle
10/12/1983EP0091218A2 Calendar
10/12/1983EP0091069A2 Arrangement for presenting tables, e.g. calenders
08/1983
08/02/1983US4396293 Salat time alarm electronic timepiece
07/1983
07/19/1983US4393611 Perpetual calendar
06/1983
06/14/1983US4387521 Alpha numeric character arrangement
05/1983
05/03/1983US4381614 Calendar
03/1983
03/15/1983US4376346 Perpetual calendar
02/1983
02/15/1983US4373281 Device for displaying indicia
11/1982
11/16/1982US4358906 Calendar
10/1982
10/12/1982US4353178 Calendar display device
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