Title:
Memorandum calendar
United States Patent 2574899
US Patent References:
/0475874.html
- - 0475874

/0554837.html
- - 0554837

/0681831.html
- - 0681831

/0684107.html
- - 0684107

/1238037.html
- - 1238037


Inventors:
Waring, Lilliam H.
Publication Date:
11/13/1951
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Assignee:
Waring, Lilliam H.
Primary Class:
40/110
Other Classes:
D19/22, 40/119
International Classes:
B42D5/04; G09D3/02; B42D5/00; G09D3/00
US Patent References:
1373744Calendar
1387488File-record and mount for chi-ray negatives
1524164Calendar
1601119Memorandum calendar
1840719Dental film mount
Foreign References:
GB190626069A
GB308015A
GB395904A