The Architect & engineer of California and the Pacific Coast (1905)
San Francisco, Calif. : Architect and Engineer Co · leaf 99
ssful workingopener for apartment houses on the mar-ket, for the front door can be opened fromevery apartment while the concealed checkand spring closes the same with tlie leastpossible effort. This is an impossibilitywith an electric opener for it is out of thequestion to attempt to make two… … It is the RischmuUer improved liquiddoor check and spring that is just nowattracting the attention of builders andcreating inquiries from architects. It isthe simplest and most durable device yetproduced and according to its inventor,is the onlyabsolutely concealed check onthe market. It is…
Architecture · Building
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