GB339571A
(enrdf_load_stackoverflow )
US2932104A
(en )
1960-04-12
Multi-year calendars
US4189853A
(en )
1980-02-26
Astrological device
US3765111A
(en )
1973-10-16
Perpetual calendar
US2006485A
(en )
1935-07-02
Calendar
GB368046A
(enrdf_load_stackoverflow )
US3597912A
(en )
1971-08-10
Day-of-the-week indicating mechanism
GB609421A
(enrdf_load_stackoverflow )
GB358026A
(enrdf_load_stackoverflow )
GB612083A
(enrdf_load_stackoverflow )
GB570489A
(enrdf_load_stackoverflow )
GB190409526A
(en )
1905-02-23
Improvements in Perpetual Calendars
GB244263A
(enrdf_load_stackoverflow )
GB571544A
(enrdf_load_stackoverflow )
FR2365173A1
(fr )
1978-04-14
Calendrier
US2154013A
(en )
1939-04-11
Perpetual calendar
SU1413662A1
(ru )
1988-07-30
Вечный календарь
CA1079067A
(en )
1980-06-10
One year calendar
US4026052A
(en )
1977-05-31
Multi-disk rotatable year calendar
CN219179786U
(zh )
2023-06-13
新型钟表结构
US1600874A
(en )
1926-09-21
Calendar
GB698886A
(enrdf_load_stackoverflow )
GB478551A
(en )
1938-01-20
Improvements in date indicators
RU9992U1
(ru )
1999-05-16
Многолетний календарь
GB558337A
(en )
1943-12-31
Improvements in and relating to perpetual calendars or date indicators