Description
Class G09D : RAILWAY OR LIKE TIME OR FARE TABLES; PERPETUAL CALENDARS
Subclass 3/12: Perpetual calendars (printed calendar blocks B42D 5/04 ; clockwork-driven perpetual calendars G04B 19/24 ) electrically operated
Class G09D : RAILWAY OR LIKE TIME OR FARE TABLES; PERPETUAL CALENDARS
Subclass 3/12: Perpetual calendars (printed calendar blocks B42D 5/04 ; clockwork-driven perpetual calendars G04B 19/24 ) electrically operated
Patent # | Title | Filing Date | Issue Date | Patent Owner |
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11830384 | Never-ending calendar | Oct 12, 21 | Nov 28, 23 | BIANHUA CONNECTS LLC |
8930820 | Automatic calendaring system | Jun 30, 11 | Jan 06, 15 | INTUIT INC. |
Publication # | Title | Filing Date | Pub Date | Patent Owner |
---|---|---|---|---|
2019/0213,920 | Structure Improvement of Digital Perpetual Clock | Sep 30, 16 | Jul 11, 19 | Not available |
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