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)
09/1982
09/28/1982US4351123 Display mount and method
08/1982
08/24/1982US4345392 Calendar
06/1982
06/22/1982CA1126024A1 Display book apparatus
05/1982
05/11/1982CA1123193A1 Permanent calendar
03/1982
03/30/1982US4321763 Magnetic calendar holder
01/1982
01/05/1982US4308678 Two-date reminder
12/1981
12/01/1981US4303995 Electronic timepiece with calendar display arrangement
11/1981
11/10/1981US4300222 Electronic timepiece
09/1981
09/30/1981EP0036846A1 Slide rule - calendar
09/15/1981US4288935 Display book apparatus
08/1981
08/25/1981US4285148 Universal round clock calendar
08/25/1981US4285147 Universal apparatus for evaluating calendar data
07/1981
07/07/1981US4276703 Calendar apparatus
06/1981
06/30/1981US4275516 Permanent calendar construction
06/23/1981CA1103452A1 Indicating device
04/1981
04/28/1981US4263733 Display mount with protected thermometer
04/28/1981US4263731 Desk set
02/1981
02/24/1981US4251935 Perpetual calendar
01/1981
01/13/1981US4244126 Lamp shade reminder clock
12/1980
12/30/1980US4241526 Perpetual calendar
12/09/1980US4237637 Information display panel
12/02/1980CA1090590A1 Calendar display apparatus
11/1980
11/25/1980CA1090126A1 Manually adjustable indicating device such as a wall or desk calendar
11/18/1980US4234187 Device for marking an element of information
10/1980
10/07/1980US4226443 Multi-month calendar
09/1980
09/09/1980US4221064 Device for displaying indicia
08/1980
08/12/1980US4216596 Perpetual calendar
07/1980
07/29/1980US4214433 Calendar display apparatus
06/1980
06/10/1980CA1079067A1 One year calendar
05/1980
05/06/1980US4201405 Perpetual or long life calendar
04/1980
04/22/1980US4198808 Calendar timepiece
04/15/1980CA1075462A1 Holder for photographs or the like
03/1980
03/18/1980US4194196 Illuminated master calendar and message recording system
02/1980
02/20/1980EP0008234A1 Electronic calendar device
02/12/1980US4187629 Perpetual and multi-year calendars
01/1980
01/08/1980US4182109 Calendar mechanism for timepieces
12/1979
12/11/1979US4177588 Indicating device
12/04/1979US4176478 Calendar
11/1979
11/27/1979US4175372 Electronic timepiece
11/13/1979CA1066158A1 Reminder card rack
05/1979
05/01/1979US4152768 Electronic apparatus with calendar
04/1979
04/03/1979CA1051661A1 Perpetual calendar
03/1979
03/06/1979US4142311 Permanent calendar
02/1979
02/06/1979US4137659 Perpetual calendar
01/1979
01/30/1979US4136473 Manually adjustable indicating device
11/1978
11/21/1978US4125954 Spice rack calendar
11/14/1978US4124975 Calendar watch
09/1978
09/19/1978US4114298 Perpetual calendar
08/1978
08/29/1978CA1037256A1 Apparatus for visually registering indicia
07/1978
07/25/1978US4102122 Electronic watch
06/1978
06/13/1978US4094082 Perpetual calendar
02/1978
02/28/1978US4075774 Perpetual calendar
11/1977
11/22/1977US4058916 Object retaining and display calendar
10/1977
10/25/1977US4055749 Electronic Hebrew calendar and date calculator
08/1977
08/16/1977US4041628 Apparatus for visually registering indicia
06/1977
06/14/1977US4028826 Perpetual memory bank calendar
05/1977
05/31/1977US4026100 Timepiece with calendar mechanism
05/31/1977US4026053 Automatic illuminating calendar
05/31/1977US4026052 Multi-disk rotatable year calendar
05/31/1977US4026051 Data-indicating device
04/1977
04/05/1977US4015351 Perpetual calendar
03/1977
03/15/1977US4011672 Mounting frame
11/1976
11/16/1976US3991499 Variable calendar
10/1976
10/05/1976US3983649 Reminder card rack
08/1976
08/24/1976US3975848 Calendar
08/24/1976US3975846 Electronic calendar system
06/1976
06/22/1976US3964196 Schelendar
06/22/1976US3964195 Event calendar
02/1976
02/10/1976US3936966 Perpetual calendars
02/10/1976US3936957 Demotic gemstone indicating device
01/1976
01/06/1976US3930326 Desk calendar
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