large at the chin, the mask may be used to pro- taking the air from the lowest stratum in the dimensions, which can be lifted from its seat room, and expire through the opening at the tect the face from severe wind and cold, and by a comparatively small force, and so ar- mouth. may, under some… … portion of the latter, for purposes which will affect them in the discharge of their duties. service to pilots, stage drivers, and others, protect firemen from the injurious effects of appear below. For further information, address the inventor whose occupations require theui to be exposed smoke…
Claim · Patents · Ofthe · Manner · Combination · Purpose · Hollow · Purpose set · India rubber · Cut grain · Lake superior · Manner set · Purposes set · Single main · Patent office · Steam engines · Claim making
Internet Archive · Public domain (published before 1931). Free to use for anything.
![An illustration from [Catalogue] (1908)](https://img.insideoutlibrary.com/img/200/ia-catalogue00demo-99-231.webp)
