Aero Research Labs.###FundingOrg[###Date______[ Dec 1963
Aero Research Labs.###FundingOrg[ BBC###Date______[ Dec

##</code><code>##

while(<DATA>) {
    chomp($_);
    $_ =~ s/###FundingOrg\[.*?(?=###)//;
    print $_ . "\n";
}

__DATA__
Aero Research Labs.###FundingOrg[###Date______[ Dec 1963
Aero Research Labs.###FundingOrg[ BBC###Date______[ Dec

##</code><code>##

Aero Research Labs.###Date______[ Dec 1963
Aero Research Labs.###Date______[ Dec