Frederick Walter Fell Clark (appellant.) / Robert Fell Clark (appellant.) / John Wilbur Tierney (appellant.) / Sir W.G. Armstrong / Consolidated Pneumatic Tool Company Limited (respondent) / Philadelphia Pneumatic Tool Company of London (appellant) / Whitworth and Company Limited (respondent) / Globe Pneumatic Engineering Company Limited (appellant) / Great Britain. Parliament. House of Lords (Appeal case 1907) | 