OF A. wireless telegraphy, and claiming an injunction and damages. In
giving particulars of infringement the plaintiffs alleged that the defendants had erected, and were using, at the Domain, Mel- bourne, at Pennant Hills, New South Wales, and at Hobart, Tas- mania, apparatus for wireless telegraphy made in accordance with or only colourably differing from the specifications of the [No. 1.]
said several letters patent, and they further said that they were unable to give further particulars of infringement before discovery.
The plaintiffs then, before any defence was delivered, applied by summons, dated 12th March 1912, for inspection of the plant or apparatus used or contained in any station for wireless tele- graphy erected or to be erected by the defendants in Australia.
It was stated in one of the affidavits filed on behalf of the defendants that the system of wireless telegraphy used at the defendants' wireless telegraph station at Melbourne was entirely different from that of the plaintiffs, and was invented by John Graeme Balsillie, an officer of the Postmaster-General's Depart- ment, and that he had assigned his rights to the inventions com- prised in such system to the defendants.
Another affidavit was one sworn by Justinian Oxenham, Secre- tary to the Postmaster-General's Department, under the direction of the Postmaster-General, containing the following paragraph "The Postmaster-General has authorized me to inform the Court that he is of opinion that it would be prejudicial to the public interest of the Commonwealth of Australia for the system of wireless telegraphy now being employed at the wireless station at Melbourne to be discovered at the present stage of the action."
The summons was heard by Higgins J., who made an order, dated 15th April 1912, that, the plaintiffs by their counsel " refusing to accept an order for inspection by some impartial expert on lines substantially similar to those laid down in Plat- ing Co. v. Farquharson 1, I make no order on the application except that the costs of the said summons, which are hereby fixed at £5 5s., be paid by the plaintiffs to the defendants."
From this decision the plaintiffs appealed to the Full Court. During the hearing of the appeal a further affidavit was sworn
11 Griff. P.C., 187.