Douglas H. Crowell

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West Gloucester, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Shoe substrate reinforcing machine
- Patent number 4,734,150
- Issue date Mar 29, 1988
- DVSG Patentverwaltungs GmbH
- Albert I. Morse
- A43 - FOOTWEAR
Information Patent Grant
Shoe substrate reinforcing machine
- Patent number 4,731,152
- Issue date Mar 15, 1988
- DVSG Patentverwaltungs
- Douglas H. Crowell
- A43 - FOOTWEAR
Information Patent Grant
Powder reinforcing laminate apparatus
- Patent number 4,681,650
- Issue date Jul 21, 1987
- USM Corporation
- Robert C. Simmonds
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Receiving belt mechanism
- Patent number 4,520,751
- Issue date Jun 4, 1985
- USM Corporation
- Albert I. Morse
- B08 - CLEANING
Information Patent Grant
Clamping mechanism for a powder reinforcing machine
- Patent number 4,502,411
- Issue date Mar 5, 1985
- USM Corporation
- Andrew J. Gilbride
- A43 - FOOTWEAR
Information Patent Grant
Cutting machine incorporating means for transferring cut parts and...
- Patent number 4,116,097
- Issue date Sep 26, 1978
- USM Corporation
- Gordon Judson Graham
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Grant
Tear seal apparatus
- Patent number 3,953,280
- Issue date Apr 27, 1976
- USM Corporation
- Thomas G. Brophy
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL