Improvements in apparatus for automatically indicating and controlling or regulatingthe humidity or degree of moisture in the atmosphere of rooms or enclosed spaces
摘要
申请公布号
GB414721(A)
申请公布日期
1934.08.03
申请号
GB19330003287
申请日期
1933.02.03
申请人
JAMES BALDWIN AND COMPANY LIMITED;GEOFFREY WARD BROADBENT
