Title:
Toy hectograph
United States Patent 2927531
Inventors:
Hirsch, Benjamin L.
Henry, Hirsch
Publication Date:
03/08/1960
Export Citation:
Click for automatic bibliography generation
Assignee:
Hirsch, Benjamin L.
Henry, Hirsch
Primary Class:
101/134.5
Other Classes:
101/297
International Classes:
A63H33/30; B41L9/00
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US Patent References:
2859690Master card feeding means in printing machines
2600990N/A
2046639Marking device
1070176N/A
1055932N/A
0192299N/A
Foreign References:
GB188707262A
FR401423A