Chapin, J. C.
view article (10.004545)
Fire-Resistant Fibers and Fabric.
Ventron Instruments Corp., Chicago, IL
U.S. Patent 3,642,525,
February 15, 1972,
4 p.
Chapin, J. C.
view article (9.9981365)
Fire-Resistant Fibers and Fabric.
Ventron Instruments Corp.
U.S. Patent 3,642,525,
February 15, 1972,
4 p.