Salvador A. Marques

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Barcelona, ES

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Patents Grantslast 30 patents

Information Patent Grant
Ladder locking mechanism
- Patent number 4,574,918
- Issue date Mar 11, 1986
- Andral Corporation
- Salvador A. Marques
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Portable fold-up ladder
- Patent number 4,448,283
- Issue date May 15, 1984
- Andral Corporation
- Salvador A. Marques
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS