Title:
Calendar mechanism
United States Patent 3220134


Inventors:
Jean-louis, Muller
Jean-pierre, Beguin
Application Number:
US9816361A
Publication Date:
11/30/1965
Filing Date:
03/24/1961
Assignee:
Jean-louis, Muller
Jean-pierre, Beguin
Primary Class:
Other Classes:
401/195, D19/21, D19/25, D19/174
International Classes:
B43K29/087; G09D3/06
View Patent Images:
US Patent References:
2567395Perpetual calendar1951-09-11
2329631Calendar pencil1943-09-14
2032547N/A1936-03-03
1692392N/A1928-11-20
1600099Calendar1926-09-14