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PrefixNamespace IRI
n4google.
isaphttp://webisa.webdatacommons.org/prov/
isahttp://webisa.webdatacommons.org/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
Subject Item
isa:307192962
rdf:type
prov:Entity
prov:value
The apparatus further comprises a frame of metal or syn thetic thermoplastic or the like material impervious to the volatile agent or product or to its vapors and sealing the body hermetically on all sides except the face or faces thereof which are coated with a diffusion layer where the frame has a window or windows; the layer is hermetically sealed along its periphery to the frame. 19 Claims, 7
prov:wasQuotedFrom
n4:com
Subject Item
isap:171767043
prov:wasDerivedFrom
isa:307192962