|
US2257375A
|
|
Upholstery spring construction
|
|
US2231744A
|
|
Spring coupling machine
|
|
US2275209A
|
|
Mattress spring binding machine
|
|
US2265332A
|
|
Mechanism for feeding strip or rod stock into punch presses
|
|
US2271842A
|
|
Cushion unit for upholstery and method of making the same
|
|
US2287734A
|
|
Mattress
|
|
US2294706A
|
|
Bale of springs
|
|
US2196526A
|
|
Spring assembly for upholstery
|
|
US2231712A
|
|
Coupled flat wire
|
|
US2235538A
|
|
Mattress or cushion
|
|
US2211925A
|
|
Spring insert for spring assemblies
|
|
US2230110A
|
|
Spring knotting and shaping machine
|
|
US2230109A
|
|
Spring assembly and springs therefor
|
|
GB503664A
|
|
Improvements in or relating to spring assemblies
|
|
US2175459A
|
|
Machine for producing modified types of upholstery springs
|
|
US2261581A
|
|
Border frame for spring assemblies
|
|
US2202052A
|
|
Upholstery spring structure
|
|
US2124695A
|
|
Spring assembly
|
|
US2150755A
|
|
Spring coupling machine
|
|
US2141588A
|
|
Spring knotting machine
|
