HALL WELTER CO INC has a total of 11 patent applications. Its first patent ever was published in 1915. It filed its patents most often in United States. Its main competitors in its focus markets textiles and paper are REINER KG ERNST, ULTRA ANSTALT ELEKTRO and INDEPENDENT MFG COMPANY.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 11 |
# | Industry | |
---|---|---|
#1 | Textiles and paper |
# | Technology | |
---|---|---|
#1 | Stamps | |
#2 | Copy machines |
# | Name | Total Patents |
---|---|---|
#1 | Welter Herman C | 10 |
#2 | Skeen Lawrence H | 1 |
Publication | Filing date | Title |
---|---|---|
US2231237A | Check writing machine | |
US2180446A | Check writing machine | |
US2266524A | Printing machine | |
US2142862A | Check writer | |
US2029646A | Inking mechanism for check writers | |
US1959186A | Check writer | |
US1556552A | Check protector | |
US1601896A | Check-writing machine | |
US1530871A | Printing apparatus | |
US1174642A | Printing mechanism and subinking means therefor. | |
US1174643A | Subinking printing means. |