Hunger et al.
1999
Astral sciences in Mesopotamia
GB358026A
(enrdf_load_stackoverflow )
GB339571A
(enrdf_load_stackoverflow )
GB368046A
(enrdf_load_stackoverflow )
GB609421A
(enrdf_load_stackoverflow )
GB190409526A
(en )
1905-02-23
Improvements in Perpetual Calendars
GB612083A
(enrdf_load_stackoverflow )
GB244263A
(enrdf_load_stackoverflow )
GB190003842A
(en )
1900-04-28
Improvements in Calendars and Date Calculators.
GB190603739A
(en )
1906-05-03
Improvements in Perpetual Calendars.
Gislén et al.
2019
The calendars of Southeast Asia. 6: Calendrical records
CN101551636B
(zh )
2012-01-04
一种手表同轴式大日历显示机构
GB698886A
(enrdf_load_stackoverflow )
GB624660A
(enrdf_load_stackoverflow )
SU1332364A1
(ru )
1987-08-23
Календарь
GB144733A
(enrdf_load_stackoverflow )
CN2236153Y
(zh )
1996-09-25
万年历转盘
CN2446619Y
(zh )
2001-09-05
转动式万年历
US1556873A
(en )
1925-10-13
Pad
US1139159A
(en )
1915-05-11
Memorandum-calendar.
RU9992U1
(ru )
1999-05-16
Многолетний календарь
US866802A
(en )
1907-09-24
Calendar.
EP0942338A3
(en )
2001-01-10
Mechanical movement watch provided with an alphanumeric perpetual read-out calender
GB190715529A
(en )
1907-10-17
Improvements in Calendars.
US633520A
(en )
1899-09-19
Perpetual calendar.