Architect and engineer . Ric-wiL Engineers do allthe preliminary engineer-ing work — you will findthe actual installation ofRic-wiL is a speedy andsimple mechanical jobbecause complete ServiceDetails are furnished witheach Ric-wiL Engineering Serviceis at your for specifications,A £# E Sheets, and Serv-ice Details of typical in-stallations. LOCKED and SEALED For alltime! The exclusive Loc-liP SideJoint on Ric-wiL Conduitis so shaped that the ce-ment is locked in placeand also locks the twohalves firmly together,making a permanentlywater-tight joint. ThusRic-wiL provid

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Architect and engineer . Ric-wiL Engineers do allthe preliminary engineer-ing work — you will findthe actual installation ofRic-wiL is a speedy andsimple mechanical jobbecause complete ServiceDetails are furnished witheach Ric-wiL Engineering Serviceis at your for specifications,A £# E Sheets, and Serv-ice Details of typical in-stallations. LOCKED and SEALED For alltime! The exclusive Loc-liP SideJoint on Ric-wiL Conduitis so shaped that the ce-ment is locked in placeand also locks the twohalves firmly together,making a permanentlywater-tight joint. ThusRic-wiL provides a lockedand sealed, water-tighthousing for the pipes andinsulating material whichguarantees a definite andpermanent efficiency. THE H. G. SPERRY COMPANY Call BldB., San Francisco 207 Calo Bldg., Los Angele Phone DO uglas 6408 Phone TU cker 8015. uNoeRCROUNO coMouinr OL

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